2011-01-27, 01:20 PM
I kind of need help, but only because this problem looks to easy...
Because Earth’s rotation is gradually slowing, the length of each day increases: The day at the end of 1.0 century is 1.0ms longer then the day at the start of the century. In 20 centuries, what is the total of the daily increases in time.
It seems like it should be 20ms but... our problems have ranks and this is a rank 2 of 3 so I don't think it's that simple.
I've looked at other problems and the ranks for the most part seem to match the problems difficulty but this one seems off... only because it seems to easy and I think it's a trap...
Because Earth’s rotation is gradually slowing, the length of each day increases: The day at the end of 1.0 century is 1.0ms longer then the day at the start of the century. In 20 centuries, what is the total of the daily increases in time.
It seems like it should be 20ms but... our problems have ranks and this is a rank 2 of 3 so I don't think it's that simple.
I've looked at other problems and the ranks for the most part seem to match the problems difficulty but this one seems off... only because it seems to easy and I think it's a trap...